Feature/admin add days to fast button

[andylitalo]

Feature

Add button to link to form that allows admin to add days by date to an existing fast. This should speed up creation of weekly fasts (can duplicate an existing weekly fast, then add days with this form).

Testing Try duplicating a weekly fast and adding a few days. Then save and add a few more. Check that they show up on the Fast's entry on the Fasts page, as well as that the Days show up associated with that weekly fast.

[andylitalo]

Yep welcome to Django admin. I fiddled with it on a work project once and gave up so I just accepted defeat this time.

[mattash]

Well, its no biggie. Should I merge?

[andylitalo]

Merged!